Comments on: Load Testing 101 http://blog.dynatrace.com/2009/10/08/load-testing-101/ dynaTrace Blog on Performance, Scalabilty and Architecture - Java and .NET Application Performance Management Fri, 30 Jul 2010 14:50:10 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Stijn Schepers http://blog.dynatrace.com/2009/10/08/load-testing-101/comment-page-1/#comment-16485 Stijn Schepers Tue, 15 Jun 2010 23:47:13 +0000 http://blog.dynatrace.com/?p=975#comment-16485 Very good article! Simple, short and well explained. Some comments: 1. It is also good to emphasise that a tool is only as good as the person who is going to use it! 2. In regards to data preparation I would mention the issue of data caching as well. Also having the different system components bounced before test execution is good practice. 3. The concept of concurrency and transactional throughput is very often not understood well. The same with “pacing” the load. Might be good to add this to this article  Well done, St Very good article! Simple, short and well explained.

Some comments:

1. It is also good to emphasise that a tool is only as good as the person who is going to use it!

2. In regards to data preparation I would mention the issue of data caching as well. Also having the different system components bounced before test execution is good practice.

3. The concept of concurrency and transactional throughput is very often not understood well. The same with “pacing” the load. Might be good to add this to this article 

Well done,

St

]]> By: VS2010 Load Testing for Distributed and Heterogeneous Applications powered by dynaTrace Performance, Scalability and Architecture – Java and .NET Application Performance Management (dynaTrace Blog) http://blog.dynatrace.com/2009/10/08/load-testing-101/comment-page-1/#comment-13478 VS2010 Load Testing for Distributed and Heterogeneous Applications powered by dynaTrace Performance, Scalability and Architecture – Java and .NET Application Performance Management (dynaTrace Blog) Wed, 10 Mar 2010 17:00:54 +0000 http://blog.dynatrace.com/?p=975#comment-13478 [...] There is more to read if you are interesting in these topics: White Paper on how to Automate Load Testing and Problem Analysis, webinars with Novell and Zappos that use a combination of a Load Testing Solution and dynaTrace to speed up their testing process as well as and additional blog posts called 101 on Load-Testing.  [...] [...] There is more to read if you are interesting in these topics: White Paper on how to Automate Load Testing and Problem Analysis, webinars with Novell and Zappos that use a combination of a Load Testing Solution and dynaTrace to speed up their testing process as well as and additional blog posts called 101 on Load-Testing.  [...]

]]> By: Andreas Grabner http://blog.dynatrace.com/2009/10/08/load-testing-101/comment-page-1/#comment-8652 Andreas Grabner Thu, 19 Nov 2009 21:33:41 +0000 http://blog.dynatrace.com/?p=975#comment-8652 Hi Michael - you are correct - I took these screenshots from one of your public pages. Sorry for not mentioning your tool explicitly. There are many great tools out there that do a damn good job in generating load and providing good high-level analysis as indicated in my paper - yours is one of them :-) Hi Michael – you are correct – I took these screenshots from one of your public pages. Sorry for not mentioning your tool explicitly. There are many great tools out there that do a damn good job in generating load and providing good high-level analysis as indicated in my paper – yours is one of them :-)

]]> By: Michael Czeiszperger http://blog.dynatrace.com/2009/10/08/load-testing-101/comment-page-1/#comment-8651 Michael Czeiszperger Thu, 19 Nov 2009 19:47:53 +0000 http://blog.dynatrace.com/?p=975#comment-8651 Just one small point-- the "Load Testing Result" graphic appears to be a really small version of our reports, down to the font and colors for the various metrics, and yet we don't even get a mention! If you're in the market for load testing software please check us out-- you know at least our reports are worth stealing :-) Just one small point– the “Load Testing Result” graphic appears to be a really small version of our reports, down to the font and colors for the various metrics, and yet we don’t even get a mention! If you’re in the market for load testing software please check us out– you know at least our reports are worth stealing :-)

]]> By: Ian Molyneaux http://blog.dynatrace.com/2009/10/08/load-testing-101/comment-page-1/#comment-7637 Ian Molyneaux Fri, 30 Oct 2009 11:12:26 +0000 http://blog.dynatrace.com/?p=975#comment-7637 Hi, An excellent article. I would also add that applications are often performance tested without taking into account the effects of WAN deployment. An application can be perfectly performant in a LAN environment but suffer significant performance degredation when deployed into reduced bandwidth, high latency conditions. Recent technology advances like WAN accelerators can help mask such shortcomings to a degree however for internet/intranet facing applications you can only guarantee performance up to the point of leaving the data centre. KR Ian Hi,

An excellent article. I would also add that applications are often performance tested without taking into account the effects of WAN deployment.
An application can be perfectly performant in a LAN environment but suffer significant performance degredation when deployed into reduced bandwidth, high latency conditions.

Recent technology advances like WAN accelerators can help mask such shortcomings to a degree however for internet/intranet facing applications you can only guarantee performance up to the point of leaving the data centre.

KR
Ian

]]> By: Speedmaster http://blog.dynatrace.com/2009/10/08/load-testing-101/comment-page-1/#comment-6844 Speedmaster Thu, 15 Oct 2009 15:49:28 +0000 http://blog.dynatrace.com/?p=975#comment-6844 Outstanding post, thanks!!! Outstanding post, thanks!!!

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